04 NOV 2018 by ideonexus
Degenerate Strategies and Cheating
Why isn't using a degenerate strategy considered cheating? Degenerate strategies take advantage of weaknesses in the rules of a game, but do not actually violate the rules. What kind of player would play in this way? The answer is both a dedicated player, who is overzealously seeking the perfect strategy, and an unsportsmanlike player, who has found a hole in the rules to exploit, even though he understands that he is not playing the game the way it was intended. These two kinds of players ca... 1 
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notesIs the same true of memorizing algorithms to solve the rubiks cube?
24 JAN 2015 by ideonexus
Intellectual Exploration as Geographical Exploration
My own field of physics is passing today through a phase of exuberant freedom, a phase of passionate prodigality. Sometimes as I listen to the conversation of my young colleagues at Princeton, I feel as if I am lost in a rain forest, with insects and birds and flowers growing all around me in intricate profusion, growing too abundantly for my sixty-year-old brain to comprehend. But the young people are at home in the rain forest and walk confidently along trails which to me are almost invisib...
1 27 DEC 2013 by ideonexus
Anecdote of Badges Encouraging Tutoring
When it comes to biology, Catherine Lacey is a Level 40 Hero. That's her ranking on OpenStudy, where the University of Western Australia student spends up to 30 hours per week answering homework questions posed by students around the world. The level indicates time spent on the site, and Hero is the hardest-to-attain badge. If you think of helping with homework as a game, she's got the high score.
The 20-year-old first stumbled upon the OpenStudy site while surfing the Web. She was hooked af...A student is motivated to tutor on a website that awards badges. Two takeaways from this: (1) award badges for mentoring and (2) award badges for content creation. Also, award points that can be spent in moderating like slashdot.
27 SEP 2013 by ideonexus
?? as a Term of Encouragement
The Chinese characters say ?? (Jia1 you2).? is composed of ? (power) and ? (mouth). It means 'to add'? is made out of ? (?, water) and ?(from/ due). It means oil.??to add? ??oil?= add oil or make an extra effort
?? is a terribly common phrase in day to day life. If you want to encourage someone to carry on great work, or in a sports competition, you say ??! A bit like 'go on!' in English.
Of course another literal meaning of ?? is to refuel.ShaoLan explains how the symbols break down.
06 JUN 2012 by ideonexus
The Universe is Made Up of Two Kinds of Waves
The tendency of modern physics is to resolve the whole material universe into waves, and nothing but waves. These waves are of two kinds: bottled-up waves, which we call matter, and unbottled waves, which we call radiation or light. If annihilation of matter occurs, the process is merely that of unbottling imprisoned wave-energy and setting it free to travel through space. These concepts reduce the whole universe to a world of light, potential or existent, so that the whole story of its creat...
3 Bottled up waves in matter and the roaming waves of radiation.
07 MAY 2012 by ideonexus
History of Science and Religion
Some people want to put warning stickers on biology textbooks, saying that the theory of evolution is just one of many theories, take it or leave it. Now, religion long predates science; it'll be here forever. That's not the issue. The problem comes when religion enters the science classroom. There's no tradition of scientists knocking down the Sunday school door, telling preachers what to teach. Scientists don't picket churches. By and arge—though it may not look this way today—science and r... 1 notes
notesHow the Middle East was the center of scientific progress until religious fever took over it, the same is seen in Jewish and Christian cultures.
21 MAR 2012 by ideonexus
Looking to the Present to Understand the Past
In using the present in order to reveal the past, we assume that the forces in the world are essentially the same through all time; for these forces are based on the very nature of matter, and could not have changed. The ocean has always had its waves, and those waves have always acted in the same manner. Running water on the land has ever had the same power of wear and transportation and mathematical value to its force. The laws of chemistry, heat, electricity, and mechanics have been the sa...Folksonomies: induction
Folksonomies: induction
1 notes
notesOceans have always had waves, streams have always worn down rocks, and other natural laws have always been the same throughout time.
03 JAN 2012 by ideonexus
The Skrodes
Ravna looked across the surf. When the waves backed down the sand, she could see the Skroderiders’ fronds peeping out of the spray. How she envied them; if tensions annoyed them, they could simply turn them off. The Skroderiders were one of the most common sophonts in the Beyond. There were many varieties, but analysis agreed with legend: very long ago they had been one species. Somewhere in the off-Net past, they had been sessile dwellers of sea shores. Left to themselves, they had developed... 1 notes
notesAn alien species that looks like plant and lacks short-term memory is given mechanical mobility and mechanical memory to help them learn how to use their mobility by a more advanced alien race.
20 MAY 2011 by ideonexus
An Origami Metaphor for Fetal Development
The sheets of tissue that
fold, invaginate and turn inside out in a developing embryo do indeed grow, and it is that very growth that provides part of the motive force which, in origami, is supplied by the human hand. If
you wanted to make an origami model with a sheet of living tissue instead of dead paper, there is at
least a sporting chance that, if the sheet were to grow in just the right way, not uniformly but faster
in some parts of the sheet than in others, this might automatically cau...Cells divide and fold into new forms, just as origami structures become other structures through new folds.
20 MAY 2011 by ideonexus
Color is the Light Beams Things Do Not Want
But the reflected light-waves do more for us than this. They not only make us see things, but they make us see them in different colours. What, you will ask, is this too the work of the sunbeams? Certainly; for if the colour we see depends on the size of the waves which come back to us, then we must see things coloured differently according to the waves they send back. For instance, imagine a sunbeam playing on a leaf: part of its waves bound straight back from it to our eye and make us see t... 1 notes
notesAll other wavelengths are being absorbed.
